2015-11-05 20:23:46 +00:00
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/*
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2016-02-04 06:37:39 +00:00
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GSPLUS - Advanced Apple IIGS Emulator Environment
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Copyright (C) 2016 - Dagen Brock
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2015-11-05 20:23:46 +00:00
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Based on the KEGS emulator written by and Copyright (C) 2003 Kent Dickey
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <ctype.h>
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#ifdef _WIN32
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# include <winsock2.h>
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#else
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# include <sys/socket.h>
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# include <netinet/in.h>
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# include <netdb.h>
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#endif
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#if defined(HPUX) || defined(__linux__) || defined(SOLARIS) || defined(MAC) || defined(__MACH__) || defined(_WIN32)
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# define SCC_SOCKETS
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#endif
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/* my scc port 0 == channel A, port 1 = channel B */
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// LLAP may have packets up to 603 bytes, and the buffers must be large enough to contain a single packet.
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#define SCC_INBUF_SIZE 1024 /* must be a power of 2 */
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#define SCC_OUTBUF_SIZE 1024 /* must be a power of 2 */
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#define SCC_MODEM_MAX_CMD_STR 128
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#ifndef SOCKET
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# define SOCKET word32 /* for non-windows */
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#endif
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STRUCT(Scc) {
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int port;
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int state /* 0 == disconnected, 1 == real serial port, 2 == socket, 3 == LocalTalk */;
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int accfd;
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SOCKET sockfd;
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int socket_state;
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int rdwrfd;
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void *host_handle;
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void *host_handle2;
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int host_aux1;
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int read_called_this_vbl;
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int write_called_this_vbl;
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int mode;
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int reg_ptr;
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int reg[16];
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int rx_queue_depth;
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byte rx_queue[4];
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unsigned int lad;
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int in_rdptr;
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int in_wrptr;
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byte in_buf[SCC_INBUF_SIZE];
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int out_rdptr;
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int out_wrptr;
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byte out_buf[SCC_OUTBUF_SIZE];
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int br_is_zero;
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int tx_buf_empty;
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int wantint_rx;
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int wantint_tx;
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int wantint_zerocnt;
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int did_int_rx_first;
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int dcd;
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int sdlc_eof;
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int eom;
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double br_dcycs;
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double tx_dcycs;
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double rx_dcycs;
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int br_event_pending;
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int rx_event_pending;
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int tx_event_pending;
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byte irq_pending;
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int char_size;
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int baud_rate;
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double out_char_dcycs;
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int socket_num_rings;
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int socket_last_ring_dcycs;
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word32 modem_mode;
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int modem_dial_or_acc_mode;
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int modem_plus_mode;
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int modem_s0_val;
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int telnet_mode;
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int telnet_iac;
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word32 telnet_local_mode[2];
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word32 telnet_remote_mode[2];
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word32 telnet_reqwill_mode[2];
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word32 telnet_reqdo_mode[2];
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int modem_cmd_len;
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byte modem_cmd_str[SCC_MODEM_MAX_CMD_STR + 5];
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};
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#define SCCMODEM_NOECHO 0x0001
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#define SCCMODEM_NOVERBOSE 0x0002
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